CN205301904U - Communication circuit at integrated multiple communication technology intelligence integration terminal - Google Patents

Abstract

The utility model relates to a communication circuit at integrated multiple communication technology intelligence integration terminal, including master control CPU, master control CPU's inside control circuit includes power supply circuit, FLASH memory, watchdog circuit and clock circuit, master control CPU adopts DM9161 network interface to connect in the main website, master control CPU is connected with multiple down communication mode, and multiple down communication mode includes remote control circuit, communication circuit, wireless module and MPU host processing ware, be connected with SW2521I -212 optic fibre light mouth and RJ45 network electricity mouth on the MPU host processing ware respectively. Communication circuit at integrated multiple communication technology intelligence integration terminal is applied to intelligence integration terminal product, and effective monitoring of all kinds of data of electric wire netting secondary side and control are realized to it, through the application of this circuit, can promote the communication capacity of intelligent integrative terminal product, adapts to each workplace demand, expands the product function.

Description

The communication circuit of integrated multiple communication technology intelligent integral terminal

Technical field

The utility model relates to the communication circuit of a kind of integrated multiple communication technology intelligent integral terminal, belongs to the communications field.

Background technology

At present, in electrical network and 10kV substation, electric power company uses intelligent monitoring terminal in batches, terminal is used for the data monitorings such as power network current, voltage, load, reliability, regulate each loop electrical load, promote electricity consumption reliability, monitor each equipment (such as transformer, trip switch etc.) running condition simultaneously. This type of comprises (hereinafter referred to as terminals) such as station institute terminal D TU, line feed terminals, distribution transformer terminals TTU, relaying device, voltage monitoring instrument and electric energy quality monitors.

The modes such as terminal conventional signalling methods has GPRS, CDMA, network, opticfiber communication, micropower is wireless, carrier wave. realize in process at various product, conventional employing is with simulating signal sampling electrical network electrical signal, by micro mutual inductor, signal changed into metering sampling data, the monitoring of electrical signal is realized by the special metering IC, terminal itself need to be accessed by this process a large amount of analog quantity wire (such as each phase voltage, electric current signal), electric energy table routine in duplexure have employed carrier communication mode or micropower wireless mode, to the uplink communication of terminal (with the signal that main website sets up, command transfer) usually adopt wireless public network (to comprise GPRS, CDMA, 3G etc.), 230MHz radio communication, the technology such as opticfiber communication. monitoring of equipment is adopted the wire communication monitored by switching value.

Along with the exploitation of digital mutual inductor and digital electric energy meter and apply, traditional a large amount of analog quantitys are converted to numerary signal, and by Optical Fiber Transmission, with opticfiber communication advantage, promotes the detection of on-the-spot check meter quality and electricity consumption reliability. But the optical fiber that the end product used at present does not have electrical signal receives and calculates.

Conventional terminal product signalling methods is single, only support two to three kinds of signalling methodss, thus the function singleness realized: as batch promotes the use of distribution transforming measure monitor terminal (TTU), it adopts the access of electrical signal analog quantity, upload with GPRS public network signal, and each communication module is independent, takies the device space big. Such product application scope is subject to drastic delimitations. Existing communication mode has: the communication schemes such as GPRS, optical fiber, micropower are wireless, carrier wave, 230MHz are wireless. Various signalling methods respectively has relative merits, and due to field circuit design requirement, the signalling methods of circuit may produce following Railway Project in product manufacturing and use procedure:

1. make in land used process, the terminating unit quantity of onsite application is many, as realized meter-reading function, concentrator need to be installed, realize electric quantity metering and distribution transformer terminals need to be installed, in realization, the control of line ball road needs institute of installation station terminal D TU, realize the control of low pressure circuit and negative control terminal need to be installed, make multiple end product realize a single function like this in power network line, cause the wasting of resources.

2. on-scene communication mode kind is many, each Terminal Type communication need to upload to main station system respectively, take various types of communication road kind many, as concentrator, distribution transformer terminals need to be uploaded by the signal of GPRS wireless public network, stand institute terminal D TU then logical opticfiber communication mode upload, upload master station signal so many and have part content to repeat.

3. field circuit designs and selects in end product process, it is necessary to the demand different according to scene, selects the terminal communication pattern of variant kind, causes and takies space relatively greatly, and on-scene communication complex circuit, wiring quantity is many.

4. in the Terminal Type of each band opticfiber communication, usually network interface is adopted to be connected in exchange board, by optical fiber exchange board realizing light mouth and the communication of net mouth, which decrease the speed of opticfiber communication, simultaneously owing to standby cost and volume are set up in the use of optical fiber exchange board.

It is therefore desirable to design the communication circuit of a kind of integrated multiple communication technology intelligent integral terminal, to overcome the problems referred to above.

Practical novel content

The purpose of this utility model is to overcome the defect of prior art, provide the communication circuit of a kind of integrated multiple communication technology intelligent integral terminal, this circuit application is in intelligent integral end product, it realizes the electric grid secondary side effective monitor and forecast of Various types of data, by the application of this circuit, promote the communication capacity of intelligence one end product, adapt to each working space demand, expand product function.

The utility model is achieved in that

The utility model provides the communication circuit of a kind of integrated multiple communication technology intelligent integral terminal, comprise master cpu, the internal control circuit of described master cpu comprises power source circuit, FLASH memory, guard the gate dog circuit and clock circuit, and described master cpu adopts DM9161 network interface to be connected to main website; Described master cpu is connected with multiple downlink communication mode, multiple downlink communication mode comprises the main treater of remote control circuit, communication circuit, wireless module and MPU, and the main treater of described MPU is connected to SW2521I-212 optical fiber mouth and RJ45 network electricity mouth.

Further, described clock circuit adopts high precision band temperature compensation 8025T chip.

Further, the internal control circuit of described master cpu also comprises RS485 interface circuit.

Further, the internal control circuit of described master cpu also comprises debugging serial port circuit.

Further, described SW2521I-212 optical fiber mouth is connected with light oral instructions sensor.

Further, described RJ45 network electricity mouth is connected with electricity oral instructions sensor.

Further, described wireless module is connected with wireless electric energy table or wireless senser.

Further, the main treater of described MPU being connected with PHY chip, described SW2521I-212 optical fiber mouth connects described PHY chip, and described RJ45 network electricity mouth connects described PHY chip by network transformer.

The utility model has following useful effect:

The internal control circuit of described master cpu comprises power source circuit, FLASH memory, guard the gate dog circuit and clock circuit, and described master cpu adopts DM9161 network interface to be connected to main website; Described master cpu is connected with multiple downlink communication mode, multiple downlink communication mode comprises the main treater of remote control circuit, communication circuit, wireless module and MPU, and the main treater of described MPU is connected to SW2521I-212 optical fiber mouth and RJ45 network electricity mouth. The communication circuit of described integrated multiple communication technology intelligent integral terminal is applied to intelligent integral end product, it realizes the electric grid secondary side effective monitor and forecast of Various types of data, by the application of this circuit, the communication capacity of intelligence one end product can be promoted, adapt to each working space demand, expand product function.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

The schematic diagram of the communication circuit of the integrated multiple communication technology intelligent integral terminal that Fig. 1 provides for the utility model embodiment.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only the utility model part embodiment, instead of whole embodiments. Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of the utility model protection.

Such as Fig. 1, the utility model embodiment provides the communication circuit of a kind of integrated multiple communication technology intelligent integral terminal, comprise master cpu, the internal control circuit of described master cpu comprises power source circuit, has the FLASH memory of 1G internal memory, guard the gate dog circuit and clock circuit, and described clock circuit adopts high precision band temperature compensation 8025T chip. Described master cpu adopts DM9161 network interface to be used for uplink communication, is connected to main website. Described master cpu is connected with multiple downlink communication mode, multiple downlink communication mode comprises the main treater of remote control circuit, communication circuit, wireless module and MPU, and the main treater of described MPU is connected to SW2521I-212 optical fiber mouth and RJ45 network electricity mouth. Wherein, described SW2521I-212 optical fiber mouth is connected with light oral instructions sensor. Described RJ45 network electricity mouth is connected with electricity oral instructions sensor; Described wireless module is connected with wireless electric energy table or wireless senser, and they adopt multiplexing mode, effectively saves space and communication control. Being connected with PHY chip on the main treater of described MPU, described SW2521I-212 optical fiber mouth connects described PHY chip, and described RJ45 network electricity mouth connects described PHY chip by network transformer. Remote control circuit connects the equipment such as rly., communication circuit connecting valve.

Further, for convenience of local debugging, the internal control circuit of described master cpu also comprises RS485 interface circuit and debugging serial port circuit.

Extensibility, on the RJ45 network electricity port communications of terminal, can expand all kinds of carrier communication interface, 230MHz etc., by the software of master cpu inside, protocol integrated test system, it may be achieved carrier wave is copied and accepted electric energy table and wireless copied and accepted electric energy table. Carry out after data integration again through being transferred to main website through master cpu.

Physical circuit designs, and serial ports turns light mouth optimization design circuit:

The utility model is the platform development based on MB9F218S+DP83620+SW2521I_212+FC_RF209, its feature: possess 3 groups of serial ports, TXD1, RXD1, TXD2, RXD2, TXD3, RXD3, it is the light message number that rs 232 serial interface signal is transferred to optical-fibre communications, making it to utilize optical fiber circuit makeup ring net topological framework, optical fiber modem can the optional position of discrete distribution on looped network and one or more equipment connection so that can not do based on the equipment of serial communication and change directly based on opticfiber communication. In order to follow-up extendability and versatility, serial ports is turned light mouth modular design by the utility model, can be used in easily on the equipment needing serial ports expansion light mouth, and this module also supports electricity port communications simultaneously.

The main treater of MPU adopts Fujitsu's MB9BF218S controller. This controller has the flash of 1M, the SRAM of 128KB, the dominant frequency of the highest 144MHz, and outside bus supports SRAM, NOR, NANDflash. Two USB interfaces, the Ethernet of a 10/100Mbps, 8 channel multi-functional serial ports support UART, CSIO, LIN, I2C, possesses the ADC of 12, the 16 basic timers of passage, 3 multi-functional timers and a dual timer, 3 QPRC, CRC verifies thus perfection incorporates industry connection function, the peripheral hardware interface of expansion connects function and sequential control generation circuit, has more remarkable high-performance. The main treater of MPU is connected with consultative management JTAG.

PHY chip is the DP83620 that ethernet PHY transceiver adopts TI, supports light mouth and electricity mouth simultaneously, and RMII/MAC interface, supports the JTAG of IEEE1149.1 agreement. DP83620 is 10/100Mbps single channel physical layer (PHY) device of National Semiconductor. Have during this period that robustness is good, function is complete, low in energy consumption, it supports MII and RMII, makes design more simple and flexible; Support 10BASE ~ T and 100BASE-TX Ethernet peripheral hardware simultaneously, other standards ethernet solution is had good compatibility and versatility. The coil coupling filtering of the difference signal difference mode coupling that PHY sent out by network transformer is with enhancing signal, and is coupled to other one end of connected with network cable by the conversion of electromagnetic field. Data can be transmitted like this in the equipment of different level. Ethernet network transformer is inherently designed to the voltage of resistance to 2kV ~ 3kV, and makes not have between netting twine and PHY connection physically through network transformer and change and deliver signal, has cut off the direct current component in signal, has also served lightning protection provide protection.

SW2521I-212 optical fiber mouth, this SW2521I-212 optical fiber mouth is two fine multimode optical fibers modules.

Wireless module is the platform development based on MB9F218S+FC_RF209, this micro power radio module has the feature of multi-channel highly sensitive, realize the transmission over radio of the asynchronous serial data of 1200-38400bpsUART, receiving sensitivity height, transfer is stablized, the product of very small volume can be made, in the various system or equipment of convenient embedding. May be used for various wireless communication occasion, such as fields such as radio meter register, wireless senser, intelligence household, automatic data collection, the automatization of building community and security protections.

For expanding light mouth on existing platform, opticfiber communication is the new communication technology grown up recent years, has multiple advantage, if to be supported that opticfiber communication needs to change platform, increases construction cycle and cost. Increasing MP9BF218S treater by what the utility model designed at original platform, light mouth and electricity mouth (RJ45) are carried out multiplexing, order inside sent by CPU directly transmits and gives light mouth, and this kind of circuit layout feasibility height, communication capacity is strong.

There is remote meter-reading function: local power line carrier module or micro power radio module pass to communication module by opticfiber communication after gathering user power utilization information, by CPU carry out after data analysis, integration and process again through RJ45 electricity port transmission to main website. Communication module is intended adopting RJ45 interface, and the signalling methodss such as compatible GRPS; Downlink communication is intended adopting opticfiber communication mode, micropower wireless networking communications, and can expand carrier communication, adapts to the application at all kinds of scene like this, and realizes large information capacity Long-range Data Transmission.

The utility model has following useful effect:

1. light mouth expansion: the utility model circuit increases MP9BF218S treater by upper for the serial ports conversion of original equipment, directly expand the RJ45 electricity mouth of reusable and two interfaces of light mouth, it is integrated on a wiring board by circuit, the links such as the communication exchange board of minimizing intermediate communication, can directly communicate by data transducer similar to digital mutual inductor, digital electric energy meter etc., transmission speed can reach the data rate of the maximum 10Gb/s of optical fiber, it is possible to realizes the monitor and forecast that terminating unit reaches Millisecond. Be may be used for the optical fiber communication function expansion of existing platform by the product of this circuit layout, under the prerequisite not changing platform, realize optical fiber communication function.

2. opticfiber communication: traditional kilowatt meter reading-out system, because the reason of distance, equipment is contained in the forceful electric power well well of residential building mostly, and uplink communication adopts GPRS signalling methods, affects bigger by quotation marks. After adopting this scheme, local device gathers the communication module being passed to terminal after user power utilization information by opticfiber communication, carry out after data integration again through fiber-optic communications traffic to main website. Communication module uplink and downlink communication all can adopt opticfiber communication mode, it is achieved large information capacity Long-range Data Transmission. Fiber transmission speeds is many, and supports that massive dataflow transmits, and has very strong extendability when reserved following big data quantity transmits. Not affecting by signal power, Optical Fiber Transmission is the mode of connection adopting optical fiber wire jumper, even can also normal data transfer in the airtight space without any signal. Optical fiber is insulating material, not thunder and lightning by nature disturb, the change in Kennelly heaviside layer and the interference of Sunspot Activities, also not by the interference of the electrified industrial electric such as feeder line and high-tension apparatus, optical cable can also be formed with its erection parallel with high voltage transmission line or with power conductor compound, therefore be particularly suitable for power system.

3. micro power radio communication: micropower is wireless employing chip and ATM9260 are through UART serial communication, wireless transmission function can be realized with other micropower wireless devices, designed by power source circuit, reduce buffering circuit, and share a power source circuit, product circuit reliability is improved more, and communication efficiency is better.

4. solution integration is at a circuit, save space to realize effectively communicating with minimum power consumption: with opticfiber communication, based on micro power radio communication, adopt the distribution module scheme of the signalling methods of integrated all kinds of main flow, by integrated, optimize, the design effectively such as merging and reduction, optical fiber, micropower is wireless, the main flow signal organic assembling such as network, and have and can expand carrier communication scheme, the public network communication schemes such as GPRS, the multiple communication technology is integrated in a communication circuit and forms distribution integrated terminal, by this product of distribution integrated terminal real electric grid secondary side effective monitor and forecast of Various types of data.

5. the utility model is simultaneously integrated and optimize the local application that micropower is wireless, fast self-networking and the technology interconnected are incorporated the design's practicality novel, by software to the control of micropower launch and accept chip, ensure that the communication efficiency that micropower is wireless, in this network, micropower is wireless support wireless electric energy table data are copied and accepted, gate inhibition is wireless copies and accepts, the controlled in wireless copying and accepting and having part power supply of humiture wireless senser. Micropower is wireless by the start and stop of the reception of the observed value of temperature, humidity and regulating and controlling equipment reach the object of control environment. Achieved path monitoring by the radio communication of branch path loop sensor.

6. Integration Design: this circuit adopts the design of veneer integration mode, is designed to opticfiber communication, micro power radio communication, serial communication in the circuit of a wiring board, and integrated level height, volume is little.

7. reliability design: adopt Watchdog control circuit, effectively prevents program fleet and lock from waiting indefinitely phenomenon, and is provided with ESD chip at each interface, effective anti-electrostatic.

8. technical grade design: components and parts adopt technical grade chip, and working temperature is at-40 DEG C-+75 DEG C.

In sum, the communication circuit of described integrated multiple communication technology intelligent integral terminal is applied to intelligent integral end product, it realizes the electric grid secondary side effective monitor and forecast of Various types of data, by the application of this circuit, the communication capacity of intelligence one end product can be promoted, adapt to each working space demand, expand product function.

The foregoing is only better embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (8)

1. the communication circuit of an integrated multiple communication technology intelligent integral terminal, it is characterized in that, comprise master cpu, the internal control circuit of described master cpu comprises power source circuit, FLASH memory, guard the gate dog circuit and clock circuit, and described master cpu adopts DM9161 network interface to be connected to main website; Described master cpu is connected with multiple downlink communication mode, multiple downlink communication mode comprises the main treater of remote control circuit, communication circuit, wireless module and MPU, and the main treater of described MPU is connected to SW2521I-212 optical fiber mouth and RJ45 network electricity mouth.

2. the communication circuit of integrated multiple communication technology intelligent integral terminal as claimed in claim 1, it is characterised in that: described clock circuit adopts high precision band temperature compensation 8025T chip.

3. the communication circuit of integrated multiple communication technology intelligent integral terminal as claimed in claim 1, it is characterised in that: the internal control circuit of described master cpu also comprises RS485 interface circuit.

4. the communication circuit of integrated multiple communication technology intelligent integral terminal as described in claim 1 or 3, it is characterised in that: the internal control circuit of described master cpu also comprises debugging serial port circuit.

5. the communication circuit of integrated multiple communication technology intelligent integral terminal as claimed in claim 1, it is characterised in that: described SW2521I-212 optical fiber mouth is connected with light oral instructions sensor.

6. the communication circuit of integrated multiple communication technology intelligent integral terminal as described in claim 1 or 5, it is characterised in that: described RJ45 network electricity mouth is connected with electricity oral instructions sensor.

7. the communication circuit of integrated multiple communication technology intelligent integral terminal as claimed in claim 1, it is characterised in that: described wireless module is connected with wireless electric energy table or wireless senser.

8. the communication circuit of integrated multiple communication technology intelligent integral terminal as described in claim 1 or 5, it is characterized in that: the main treater of described MPU is connected with PHY chip, described SW2521I-212 optical fiber mouth connects described PHY chip, and described RJ45 network electricity mouth connects described PHY chip by network transformer.